Vehicle glass light transmission adjusting method, device and equipment

Abstract

The invention provides a vehicle glass light transmission adjusting method, device and equipment, and is applied to the technical field of vehicle glass control. The method includes acquiring vehicle state information of a vehicle, environmental information, and passenger state information of passengers in the vehicle. And determining the current driving scene of the vehicle according to the vehicle state information. And determining a light transmittance adjustment strategy suitable for the passenger according to the driving scene, the environment information and the passenger state information. The light transmittance adjusting strategy comprises a global adjusting strategy and a local adjusting strategy. The first light transmittance of the vehicle glass is adjusted through the global adjustment strategy, the second light transmittance corresponding to passengers on the vehicle glass is adjusted through the local adjustment strategy, and the problems that a traditional vehicle glass light transmittance adjustment method depends on active adjustment of a user, the adjustment mode cannot adapt to the actual driving condition, adjustment is too rigid, and the adjustment efficiency is poor can be solved. And the user experience is relatively poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle glass control, in particular to a vehicle glass light transmission adjusting method, device and equipment. BACKGROUND

[0002] With the development of automobile intelligence, variable light transmission rate dimming glass gradually gets application because it can dynamically adjust the brightness of the vehicle window and improve the comfort and privacy of driving and riding.

[0003] The main dimming glass control method mainly relies on user manual or voice instruction adjustment. The user sets a specific light transmission rate value according to his subjective feeling, and then the system adjusts the light transmission rate of the vehicle window glass to the set value. However, this vehicle glass light transmission adjusting method highly depends on the user's active intervention. In the rapidly changing driving environment (such as suddenly driving out of the tunnel and the opposite vehicle turning on the high beam), the user often has difficulty in responding and making accurate adjustments, which not only causes distraction, but also brings safety hazards. Secondly, this adjustment method is seriously disconnected with the specific driving scene of the vehicle. For example, in different scenes such as high-speed cruising, urban congestion and parking rest, the user's demand for light transmission rate is actually different, but the existing system cannot perceive and automatically adapt to these changes in demand, resulting in rigid adjustment and poor user experience. SUMMARY

[0004] The purpose of the present application is to provide a vehicle glass light transmission adjusting method, device and equipment, which solves the problem that the traditional vehicle glass light transmission adjusting method relies on user active adjustment, the adjustment method cannot adapt to the actual driving situation, the adjustment is too rigid, and the user experience is poor.

[0005] In a first aspect, the embodiments of the present application provide a vehicle glass light transmission adjusting method, which comprises: obtaining vehicle state information, environment information and passenger state information of passengers in the vehicle. According to the vehicle state information, the current driving scene of the vehicle is determined. According to the driving scene, the environment information and the passenger state information, a light transmission rate adjusting strategy suitable for the passengers is determined. The light transmission rate adjusting strategy includes a global adjusting strategy and a local adjusting strategy. The first light transmission rate of the vehicle glass is adjusted through the global adjusting strategy, and the second light transmission rate corresponding to the passengers on the vehicle glass is adjusted through the local adjusting strategy.

[0006] The vehicle glass light transmission adjustment method provided by the embodiments of the present application can accurately adjust the light transmission rate of the vehicle glass in combination with the driving scene of the vehicle by comprehensively considering the vehicle state information, the environment information and the passenger state information, can ensure that the driver can maintain a clear field of view under various illumination conditions, thereby improving the driving safety, and can also adjust the global and local light transmission rates of the vehicle window according to the passenger state information of different passengers, thereby providing a comfortable riding environment for the passengers.

[0007] In a possible implementation, the light transmission rate adjustment strategy suitable for the passenger is determined according to the driving scene, the environment information and the passenger state information, including: determining a global adjustment strategy according to the driving scene. A projection area of a target light source on the vehicle glass is identified based on the external environment information. A visual interference degree of the target light source on the passenger is determined according to the passenger state information. A local adjustment strategy for the projection area is determined according to the visual interference degree, to adjust the light transmission rate of the vehicle window glass corresponding to the projection area.

[0008] In a possible implementation, the visual interference degree of the target light source on the passenger is determined according to the passenger state information, including: extracting pupil data of the passenger from the passenger state information. The pupil data includes one or more of the following: contraction speed, expansion speed and fluctuation frequency. The visual interference degree is determined according to the contraction speed, the expansion speed and the fluctuation frequency.

[0009] In a possible implementation, a plurality of dimming units are deployed on the vehicle glass. The local adjustment strategy for the projection area is determined according to the visual interference degree, to adjust the light transmission rate of the vehicle window glass corresponding to the projection area, including: determining at least one first dimming unit covering the projection area. A center light transmission rate required by a first center dimming unit corresponding to the center of the projection area is determined according to the visual interference degree. The light transmission rates of the first dimming units other than the first center dimming unit are adjusted based on the center light transmission rate.

[0010] In a possible implementation, the vehicle glass light transmission adjustment method provided by the embodiments of the present application further includes: tracking the gaze direction of the passenger in real time. The position of the projection area on the vehicle glass is dynamically updated according to the gaze direction and the position of the target light source. At least one second dimming unit covering the updated projection area is determined according to the position of the updated projection area on the vehicle glass. The light transmission rate of each second dimming unit is adjusted according to the visual interference degree, to update the local adjustment strategy.

[0011] In a possible implementation, the global adjustment strategy is determined according to the driving scene, including: when the driving scene is a high-speed driving scene, the global adjustment strategy is determined as reducing overall glare; and / or, when the driving scene is a tunnel passing scene, the global adjustment strategy is determined as quickly responding to light difference; and / or, when the driving scene is a parking scene, the global adjustment strategy is determined as reducing overall light transmittance.

[0012] In a possible implementation, the first light transmittance of the vehicle glass is adjusted by the global adjustment strategy, and the second light transmittance of the passenger corresponding to the vehicle glass is adjusted by the local adjustment strategy, including: adjusting the overall light transmittance of the vehicle glass to the first light transmittance according to the global adjustment strategy; and adjusting the local light transmittance of the projection area on the vehicle glass from the first light transmittance to the second light transmittance according to the local adjustment strategy.

[0013] In a possible implementation, the vehicle glass light transmittance adjustment method provided by the embodiment of the application further includes: when it is detected that the light transmittance adjustment function of the vehicle fails, a failure signal is generated. The failure signal includes a failure position and a failure type. The failure signal is sent to the control system of the vehicle.

[0014] In a second aspect, the embodiment of the application provides a vehicle glass light transmittance adjustment device, which includes an acquisition module, a determination module, and an adjustment module.

[0015] The acquisition module is configured to acquire vehicle state information of the vehicle, environment information, and passenger state information of a passenger in the vehicle.

[0016] The determination module is configured to determine a current driving scene of the vehicle according to the vehicle state information, and determine a light transmittance adjustment strategy suitable for the passenger according to the driving scene, the environment information, and the passenger state information. The light transmittance adjustment strategy includes a global adjustment strategy and a local adjustment strategy.

[0017] The adjustment module is configured to adjust a first light transmittance of the vehicle glass by the global adjustment strategy, and adjust a second light transmittance of the passenger corresponding to the vehicle glass by the local adjustment strategy.

[0018] In a possible implementation, when the determination module is configured to determine the light transmittance adjustment strategy suitable for the passenger according to the driving scene, the environment information, and the passenger state information, the determination module is specifically configured to: determine the global adjustment strategy according to the driving scene; identify a projection area of a target light source on the vehicle glass based on the external environment information; determine a visual interference degree of the target light source on the passenger according to the passenger state information; and determine the local adjustment strategy for the projection area according to the visual interference degree, so as to adjust the light transmittance of the projection area corresponding to the vehicle glass.

[0019] In a possible implementation, the determining module is specifically configured to: extract pupil data of the passenger from the passenger state information when determining the visual interference degree of the target light source on the passenger according to the passenger state information. The pupil data includes one or more of the following: a contraction speed, an expansion speed, and a fluctuation frequency. The visual interference degree is determined according to the contraction speed, the expansion speed, and the fluctuation frequency.

[0020] In a possible implementation, a plurality of light adjustment units are deployed on the vehicle glass. The determining module is specifically configured to: determine at least one first light adjustment unit covering the projection area when determining the local adjustment strategy for the projection area according to the visual interference degree, so as to adjust the light transmittance of the vehicle window glass corresponding to the projection area. The first center light adjustment unit corresponding to the center of the projection area is determined according to the visual interference degree. The light transmittance of the first light adjustment unit other than the first center light adjustment unit is adjusted based on the center light transmittance.

[0021] In a possible implementation, the vehicle glass light transmittance adjustment provided by the embodiments of the present application is also used for: tracking the line-of-sight direction of the passenger in real time. The position of the projection area on the vehicle glass is dynamically updated according to the line-of-sight direction and the position of the target light source. At least one second light adjustment unit covering the updated projection area is determined according to the position of the updated projection area on the vehicle glass. The light transmittance of each second light adjustment unit is adjusted according to the visual interference degree, so as to update the local adjustment strategy.

[0022] In a possible implementation, the determining module is specifically configured to: determine that the global adjustment strategy is to reduce overall glare when the driving scene is a high-speed driving scene when determining the global adjustment strategy according to the driving scene. And / or, determine that the global adjustment strategy is to quickly respond to light differences when the driving scene is a tunnel passing scene. And / or, determine that the global adjustment strategy is to reduce overall light transmittance when the driving scene is a parking scene.

[0023] In a possible implementation, the adjusting module is specifically configured to: adjust the overall light transmittance of the vehicle glass to the first light transmittance according to the global adjustment strategy when adjusting the first light transmittance of the vehicle glass through the global adjustment strategy, and adjusting the second light transmittance of the passenger corresponding to the vehicle glass through the local adjustment strategy. The local light transmittance of the projection area on the vehicle glass is adjusted from the first light transmittance to the second light transmittance according to the local adjustment strategy.

[0024] In a possible implementation, the vehicle glass light transmittance adjustment provided by the embodiments of the present application is also used for: generating a fault signal when it is detected that the light transmittance adjustment function of the vehicle fails. The fault signal includes a fault position and a fault type. The fault signal is sent to the control system of the vehicle.

[0025] In a third aspect, the embodiments of the present application provide a vehicle glass light transmission adjusting device, which has the function of implementing the vehicle glass light transmission adjusting method of the first aspect or any possible implementation manner of the first aspect. The function can be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above function.

[0026] In a fourth aspect, the embodiments of the present application provide a computer readable storage medium, which stores instructions, when running on a computer, so that the computer can execute the vehicle glass light transmission adjusting method of the first aspect or any possible implementation manner of the first aspect.

[0027] In a fifth aspect, the embodiments of the present application provide a computer program product containing instructions, when running on a computer, so that the computer can execute the vehicle glass light transmission adjusting method of the first aspect or any possible implementation manner.

[0028] The technical effects brought by any design manner of the second aspect to the fifth aspect can refer to the technical effects brought by the first aspect or different possible implementation manners of the first aspect, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0030] Figure 1 A system structure diagram of a vehicle is provided for the embodiments of the present application; Figure 2 A method flow chart of a vehicle glass light transmission adjusting method is provided for the embodiments of the present application; Figure 3 A structure schematic diagram of a vehicle glass light transmission adjusting device is provided for the embodiments of the present application; Figure 4 A system architecture diagram of a vehicle glass light transmission adjusting system is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0033] In the related art, the light transmission adjustment method for vehicle glass mainly relies on manual adjustment by passengers or through voice instructions. This light transmission adjustment method for vehicle glass usually sets a specific light transmission value according to the subjective feeling of the user, and then the head unit system adjusts the light transmission of the vehicle window glass to the set value. However, this method highly depends on the active intervention of the passengers, which requires the passengers to constantly adjust, affecting the user experience. At the same time, in the actual driving environment, due to the changing environment, for example, suddenly driving out of a tunnel or the opposite vehicle turning on the high beam, the user often has difficulty in responding and accurately adjusting, which not only causes operational analysis, but also brings safety hazards to the passengers or the actual.

[0034] Based on this, the embodiments of the present application provide a vehicle glass light transmission adjustment method, device and equipment, the method comprising: obtaining vehicle state information, environment information of the vehicle and passenger state information of the passengers in the vehicle; determining the current driving scene of the vehicle according to the vehicle state information; determining a light transmission rate adjustment strategy suitable for the passengers according to the driving scene, the environment information and the passenger state information; the light transmission rate adjustment strategy includes a global adjustment strategy and a local adjustment strategy; adjusting the first light transmission rate of the vehicle glass through the global adjustment strategy, and adjusting the second light transmission rate corresponding to the passengers on the vehicle glass through the local adjustment strategy.

[0035] The vehicle glass light transmission adjustment method provided by the embodiments of the present application can accurately adjust the light transmission rate of the vehicle glass by comprehensively considering the vehicle state information, environment information and passenger state information, in combination with the driving scene of the vehicle, which can ensure that the driver can maintain a clear field of view under various lighting conditions, thereby improving driving safety, and can also adjust the global and local light transmission rates of the vehicle window according to the passenger state information of different passengers, to provide a comfortable riding environment for the passengers.

[0036] The scheme provided by the embodiments of the present application will be described in detail below with specific examples.

[0037] In one aspect, the embodiments of the present application provide a vehicle. As shown in the figure, the vehicle 100 can include a car control system 101 and a vehicle glass 102. Figure 1

[0038] The car control system 101 is configured to collect vehicle state information of the vehicle, environment information of the environment where the vehicle is located, and passenger state information of the passengers in the vehicle in real time, fuse and analyze the vehicle state information, the environment information and the passenger state information by the vehicle glass light transmission adjusting method provided by the embodiments of the present application, and generate and execute a global adjustment strategy and a local adjustment strategy for the vehicle glass 102.

[0039] Specifically, the car control system 101 can include one or more of the following: a cabin domain controller, a body domain controller, a gearbox control unit, a hybrid control unit, a light rain sensor, an information communication module, and a window light control glass controller.

[0040] The cabin domain controller can be configured to manage the preference configuration of the user in the supplementary scene mode. For example, it internally stores the light transmittance preference settings preset by the user or defined by the system in different driving modes (such as parking mode, rest mode, one-key standby mode, and sentinel mode). When these modes are activated, the controller provides the corresponding basic light transmittance target value to the system as the initial input of the adjustment strategy.

[0041] The body domain controller can be configured to collect and aggregate various vehicle state signals, such as door lock status, window position, seat occupancy signal, etc. It sends the integrated vehicle state information to the window light control glass controller to provide auxiliary basis for the judgment of the driving scene.

[0042] The gearbox control unit can be configured to monitor and provide accurate gear information (such as P, D, R, etc.) of the vehicle in real time.

[0043] The hybrid control unit can be configured to provide core dynamic parameters of the vehicle, including real-time vehicle speed and acceleration. Based on the core dynamic parameters of the vehicle, the specific driving scene of the vehicle can be determined, such as high-speed cruising, urban congestion, acceleration, deceleration, etc.

[0044] The light rain sensor can be configured to collect external environment information of the vehicle, such as ambient light intensity, light direction, and whether it is raining, etc.

[0045] ​The vehicle window dimming glass controller can receive information from all the above controllers through the vehicle network (such as CAN bus). After receiving the vehicle state information, the environment information and the passenger state information, the vehicle window dimming glass controller determines the driving scene based on the received vehicle state information, and fuses the environment information and the passenger state information to generate the transmittance adjustment instruction containing the global adjustment strategy and the local adjustment strategy, so as to drive the dimming unit on the vehicle glass 102 to work.

[0046] The information communication module can be used to feedback the state of the vehicle head unit control system 101 and the vehicle glass 102. When it is detected that the vehicle window dimming glass controller or the dimming unit controlled by it fails, the information communication module can send the received fault signal (containing the fault position and type) to the central control display screen of the vehicle for alarm, and at the same time push the fault information to the user's mobile device through the T-BOX to realize remote state monitoring and prompting.

[0047] The vehicle glass 102 can be used to adjust the transmittance under the control of the vehicle head unit control system 101 to meet the needs of passengers in different driving scenes. Specifically, the vehicle glass 102 can be integrated with at least one dimming unit on the surface or inside. These dimming units can realize continuous adjustment from full transparency to deep color after receiving the transmittance adjustment instruction of the vehicle window dimming glass controller, so as to execute the global adjustment strategy and the local adjustment strategy.

[0048] It should be noted that the above Figure 1 The vehicle 100 shown is only an example of the application scenario of the scheme of the present application, and is not a limitation on the application scenario of the scheme of the present application.

[0049] In one aspect, the embodiments of the present application provide a vehicle glass transmittance adjustment method, which can be executed by Figure 1 The vehicle 100 shown is only an example of the application scenario of the scheme of the present application, and is not a limitation on the application scenario of the scheme of the present application. Figure 2 The method can include the following steps.

[0050] S201, obtaining vehicle state information, environment information and passenger state information of passengers in the vehicle.

[0051] The vehicle state information can include real-time dynamics parameters (such as vehicle speed, longitudinal acceleration and lateral acceleration, etc.) of the vehicle, gear position (such as P, D and R, etc.), hand brake state, scene mode (such as parking mode, short break mode, one-key standby mode, and sentinel mode, etc.). The environment information can include the light intensity, light source direction and rainfall condition of the external environment of the vehicle. The passenger state information can include the pupil data of the passengers, etc.

[0052] In a possible implementation, a real-time dynamics parameter of the vehicle is calculated by the hybrid control unit in real time. The gear position of the vehicle is detected by the gearbox control unit in real time. The vehicle state signal of the vehicle is acquired by the body domain controller. The scene mode selected by the user is acquired by the cabin domain controller.

[0053] In another possible implementation, the environment information of the external environment of the vehicle is acquired by the light intensity sensor arranged on the vehicle.

[0054] In still another possible implementation, the passenger state information of the passenger is acquired by the in-cabin sensor of the vehicle.

[0055] In S202, the driving scene of the vehicle at present is determined according to the vehicle state information.

[0056] The driving scene can include a high-speed driving scene, a tunnel passing scene, a parking scene, and the like.

[0057] In a possible implementation, when it is detected that the vehicle speed of the vehicle is continuously higher than a preset high-speed threshold, and the gear position of the gearbox is in the D gear, it can be determined that the driving scene of the vehicle at present is the high-speed driving scene.

[0058] In a possible implementation, when it is detected that the external light intensity of the vehicle mutates in a short time. For example, the external light intensity of the vehicle increases from low light intensity to high light intensity in 3 seconds, it can be determined that the driving scene of the vehicle at present is the tunnel passing scene.

[0059] In a possible implementation, when it is detected that the low gear of the vehicle is in the parking gear or the neutral gear, and the vehicle speed is 0, it can be determined that the vehicle is in the parking scene.

[0060] It should be noted that the driving scene can also include a traffic jam scene, a night driving scene, and the like, and the type of the driving scene is not limited in the application.

[0061] For example, when it is detected that the light intensity is low, and the high beam of the vehicle is suddenly recognized to appear in the opposite direction, it can be determined that the driving scene of the vehicle at present is the night driving scene.

[0062] In S203, the light transmittance adjustment strategy suitable for the passenger is determined according to the driving scene, the environment information, and the passenger state information.

[0063] The light transmittance adjustment strategy includes a global adjustment strategy and a local adjustment strategy. The global adjustment strategy is used to provide the light transmittance adjustment strategy suitable for the current driving scene for the passenger in a macroscopic manner, so as to ensure that the light transmittance of the vehicle glass can guarantee the safety and comfort of the current driving scene. The local adjustment strategy is used to provide the local fine adjustment strategy for the light transmittance adjustment of the vehicle glass on the basis of the global adjustment strategy, so as to enable it to make accurate and individualized responses to emergencies.

[0064] Specifically, first, the global adjustment strategy is determined according to the driving scene.

[0065] In one possible implementation, when the driving scene is a high-speed driving scene, the global adjustment strategy is determined to be reducing overall glare.

[0066] Specifically, when it is determined that the current driving scene of the vehicle is a high-speed driving scene, the overall base light transmittance of the front windshield and the left and right windshields is set to a medium-low level, for example, 50%-70% of the regular state.

[0067] This process can reduce persistent strong light irradiation and relieve visual fatigue of passengers by determining the global adjustment strategy to be reducing overall glare when it is detected that the current driving scene is a high-speed driving scene.

[0068] In another possible implementation, when the driving scene is a tunnel passing scene, the global adjustment strategy is determined to be quickly responding to light difference.

[0069] Specifically, when it is determined that the current driving scene of the vehicle is a tunnel passing scene, the global adjustment strategy is determined to be quickly responding to light difference. Meanwhile, when it is detected that the vehicle is about to enter a tunnel, the light transmittance of the front windshield starts to be linearly reduced; when the vehicle is driving in the tunnel, the light transmittance of the vehicle glass is maintained at a low and temperature light transmittance; and when the vehicle is about to exit the tunnel, the light transmittance starts to be linearly increased to adapt to external strong light.

[0070] In another possible implementation, when the driving scene is a parking scene, the global adjustment strategy is determined to be reducing overall light transmittance.

[0071] Specifically, when it is determined that the current driving scene of the vehicle is a parking scene, the light transmittance of all vehicle glasses of the vehicle is greatly reduced to a low level, for example, 10%-20% of the regular state. This can effectively protect the privacy of the vehicle and reduce the interference of external light on passengers in the vehicle.

[0072] Secondly, a projection area of a target light source on the vehicle glass is identified based on external environment information. According to passenger state information, the visual interference degree of the target light source on the passengers is determined. Finally, according to the visual interference degree, a local adjustment strategy for the projection area is determined to adjust the light transmittance of the vehicle window glass corresponding to the projection area.

[0073] In a possible implementation, the step of determining the visual disturbance degree of the target light source to the passenger according to the passenger state information can include extracting pupil data of the passenger from the passenger state information. The pupil data includes one or more of the following: a contraction speed of the passenger's pupil when facing a light stimulus, an expansion speed after the light is removed, and a fluctuation frequency under stable light. The visual disturbance degree is determined according to the contraction speed, the expansion speed, and the fluctuation frequency.

[0074] For example, when the contraction speed of the pupil is detected to be unusually fast, which can indicate that the passenger is suddenly exposed to strong light, it can be determined that the visual disturbance degree of the passenger is high at this time.

[0075] Further, a plurality of dimming units can be deployed on the vehicle glass. The step of determining a local adjustment strategy for the projection area according to the visual disturbance degree to adjust the light transmittance of the vehicle window glass corresponding to the projection area can include determining at least one first dimming unit covering the projection area. A center light transmittance required by a first center dimming unit corresponding to the center of the projection area is determined according to the visual disturbance degree. The light transmittance of the first dimming units other than the first center dimming unit is adjusted based on the center light transmittance.

[0076] Specifically, after determining the visual disturbance degree of the passenger, the projection area of the target light source on the vehicle glass is calculated based on the visual disturbance degree and the position of the target light source, and at least one first dimming unit on the vehicle glass that completely covers the projection area is determined. According to the visual disturbance degree, a first center dimming unit located at the center of the projection area is set to a minimum center light transmittance (for example, 5% under high disturbance degree). Then, based on the center light transmittance, gradually increasing light transmittance values are calculated and assigned to other first dimming units around the first center dimming unit, which can ensure that the brightness change from the center of the projection area to the unaffected area is a smooth gradient transition, thereby effectively shielding glare while avoiding new interference caused by harsh boundaries to the field of view.

[0077] Further, the line-of-sight direction of the passenger is tracked in real time. According to the line-of-sight direction and the position of the target light source, the position of the projection area on the vehicle glass is dynamically updated. According to the updated position of the projection area on the vehicle glass, at least one second dimming unit covering the updated projection area is determined. According to the visual disturbance degree, the light transmittance of each second dimming unit is adjusted to update the local adjustment strategy.

[0078] Specifically, the line-of-sight direction of the passenger is tracked in real time, and the position of the target light source is continuously monitored. When the line-of-sight direction of the passenger and the position of the target light source are detected to change, the position of the projection area on the vehicle glass is dynamically updated. Based on the updated position, at least one second dimming unit capable of covering the updated projection area is re-determined, and finally the light transmittance of each second dimming unit in the at least one second dimming unit is adjusted according to the latest visual interference degree, which can ensure that the local adjustment strategy can cope with the movement of the passenger or the change of the position of the target light source at any time, and provide continuous and stable visual protection for the passenger.

[0079] S204, adjusting the first light transmittance of the vehicle glass through the global adjustment strategy, and adjusting the second light transmittance of the passenger on the vehicle glass through the local adjustment strategy.

[0080] Specifically, first, the light transmittance of the vehicle glass is adjusted to the first light transmittance through the global adjustment strategy. The first light transmittance is determined based on the driving scene of the vehicle. Then, the second light transmittance of the passenger on the vehicle glass is adjusted through the local adjustment strategy. The second light transmittance is determined based on the environmental information of the vehicle and the state information of the passenger.

[0081] In one possible implementation, the overall light transmittance of the vehicle glass is adjusted to the first light transmittance according to the global adjustment strategy. The local light transmittance of the projection area on the vehicle glass is adjusted from the first light transmittance to the second light transmittance according to the local adjustment strategy.

[0082] Specifically, first, according to the global adjustment strategy, a uniform light transmittance adjustment instruction is issued to all dimming units on the vehicle glass, and the overall light transmittance is synchronously adjusted to the first light transmittance. Then, based on the local adjustment strategy, the first adjustment unit corresponding to the projection area on the vehicle glass is determined, the light transmittance of the first center adjustment unit of the projection area is adjusted from the first light transmittance to the second light transmittance, and then the light transmittance of other first adjustment units except the first center adjustment unit is gradually adjusted from the center of the projection area. Based on the distance between the other first adjustment units and the first center adjustment unit, the light transmittance of the other first adjustment units is gradually increased until the first light transmittance is reached, so as to ensure that the light intensity interference is eliminated while the harsh visual boundary is prevented due to the sudden change of the light transmittance.

[0083] In another possible implementation, the overall light transmittance of the vehicle glass is adjusted to the first light transmittance according to the global strategy. The local light transmittance of the projection area on the vehicle glass is adjusted to the second light transmittance according to the local adjustment strategy.

[0084] Specifically, first, according to the global adjustment strategy, a uniform transmittance adjustment instruction is sent to all light adjustment units of the vehicle glass, and the overall transmittance of the vehicle glass is synchronously adjusted to a first transmittance, so as to quickly establish a basic visual environment. Then, based on the local adjustment strategy, the first light adjustment unit covering the shadow area is located, and an independent transmittance adjustment instruction is sent to the unit, and the transmittance of the unit is directly adjusted to a second transmittance.

[0085] The process can quickly respond to a specific strong light source by determining the adjustment unit corresponding to the shadow area based on the first transmittance, and correcting the transmittance of the local area adjustment unit based on the second transmittance.

[0086] Further, in the process of adjusting the transmittance of the vehicle glass, the working condition of each adjustment unit can be detected to determine whether the transmittance adjustment function of the vehicle is normal.

[0087] Specifically, when a fault is detected in the transmittance adjustment function of the vehicle, a fault signal is generated. The fault signal includes a fault position and a fault type. The fault signal is sent to the control system of the vehicle.

[0088] For example, when an abnormality is detected in the transmittance adjustment function of the vehicle, a fault detection process is immediately triggered. First, the window light control glass controller generates a fault signal containing detailed information. The fault signal can include a fault position (for example, specifically identifying that the communication of a certain area light adjustment unit of the front windshield is interrupted) and a fault type (for example, the light adjustment unit is unresponsive or the transmittance adjustment instruction is timed out).

[0089] Then the window light control glass controller sends the fault signal to the vehicle infotainment control system through the CAN bus, and displays the fault information on the vehicle central control large screen, to provide an intuitive fault warning for the user in the vehicle. At the same time, the infotainment system sends the fault information to the user's mobile device through the wireless network, to realize remote fault warning.

[0090] Further, the user can also predefine the transmittance in a specific scenario. Specifically, the user can enter the cabin setting interface through the touch screen of the vehicle, and the cabin setting interface can provide a special light adjustment glass personalized setting menu for the user. The user can set the transmittance of each vehicle glass for each mode in the light adjustment glass personalized menu. For example, after the user selects any scene mode, the interface further displays a visual vehicle model, and marks the independently controllable vehicle glass area. For each glass, the system provides a sliding bar or a numerical input box for the user to predefine a preferred transmittance value for the glass in the specific scenario.

[0091] The above describes the scheme provided by the embodiments of the present application mainly from the perspective of the working principle of the device. It can be understood that the vehicle glass light transmission adjusting device includes hardware structures and / or software modules for performing respective functions in order to implement the above functions. Those skilled in the art should easily realize that, in combination with the algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in the form of hardware or computer software driving hardware depends on the specific application of the technical solution and design constraints. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0092] The embodiments of the present application can divide the functional modules of the vehicle glass light transmission adjusting device according to the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated in one processing module. The above integrated module can be implemented in the form of hardware or software functional module.

[0093] It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical functional division. Actual implementation can have another division manner. In the case of dividing each functional module according to each function, Figure 3 A possible composition schematic diagram of the vehicle glass light transmission adjusting device involved in the above and embodiments is shown. As Figure 3 shown, the vehicle glass light transmission adjusting device 300 can include an acquisition module 301, a determination module 302, and an adjusting module 303.

[0094] The acquisition module 301 is configured to support the vehicle glass light transmission adjusting device 300 to perform Figure 2 S201 in the schematic vehicle glass light transmission adjusting method.

[0095] The determination module 302 is configured to support the vehicle glass light transmission adjusting device 300 to perform Figure 2 S202 and S203 in the schematic vehicle glass light transmission adjusting method.

[0096] The adjusting module 303 is configured to support the vehicle glass light transmission adjusting device 300 to perform Figure 2 S204 in the schematic vehicle glass light transmission adjusting method.

[0097] In a possible implementation, the determining module is specifically configured to: determine a global adjustment strategy according to the driving scene when determining the light transmittance adjustment strategy suitable for the passenger according to the driving scene, the environmental information, and the passenger state information. Identify a projection area of the target light source on the vehicle glass based on the external environmental information. Determine a visual interference degree of the target light source on the passenger according to the passenger state information. Determine a local adjustment strategy for the projection area according to the visual interference degree, to adjust the light transmittance of the vehicle window glass corresponding to the projection area.

[0098] In a possible implementation, the determining module is specifically configured to: extract pupil data of the passenger from the passenger state information when determining the visual interference degree of the target light source on the passenger according to the passenger state information. The pupil data includes one or more of the following: a contraction speed, an expansion speed, and a fluctuation frequency. Determine the visual interference degree according to the contraction speed, the expansion speed, and the fluctuation frequency.

[0099] In a possible implementation, a plurality of dimming units are deployed on the vehicle glass. The determining module is specifically configured to: determine at least one first dimming unit covering the projection area when determining the local adjustment strategy for the projection area according to the visual interference degree, to adjust the light transmittance of the vehicle window glass corresponding to the projection area. Determine a center light transmittance required by a first center dimming unit corresponding to a center of the projection area according to the visual interference degree. Adjust the light transmittance of the first dimming units other than the first center dimming unit in the first dimming units based on the center light transmittance.

[0100] In a possible implementation, the vehicle glass light transmittance adjustment provided by the embodiments of the present application is also used for: tracking a line-of-sight direction of the passenger in real time. Dynamically update a position of the projection area on the vehicle glass according to the line-of-sight direction and a position of the target light source. Determine at least one second dimming unit covering the updated projection area according to the updated position of the projection area on the vehicle glass. Adjust the light transmittance of each second dimming unit according to the visual interference degree, to update the local adjustment strategy.

[0101] In a possible implementation, the determining module is specifically configured to: determine the global adjustment strategy as reducing overall glare when the driving scene is a high-speed driving scene when determining the global adjustment strategy according to the driving scene. And / or, determine the global adjustment strategy as quickly responding to light differences when the driving scene is a tunnel passing scene. And / or, determine the global adjustment strategy as reducing overall light transmittance when the driving scene is a parking scene.

[0102] In a possible implementation, the adjusting module is specifically configured to: adjust the overall light transmittance of the vehicle glass to the first light transmittance according to the global adjusting strategy; and adjust the local light transmittance of the projection area on the vehicle glass from the first light transmittance to the second light transmittance according to the local adjusting strategy, when adjusting the first light transmittance of the vehicle glass by the global adjusting strategy and adjusting the second light transmittance of the passenger corresponding area on the vehicle glass by the local adjusting strategy.

[0103] In a possible implementation, the vehicle glass light transmittance adjusting device provided by the embodiment of the present application is further configured to: generate a fault signal when it is detected that the light transmittance adjusting function of the vehicle fails. The fault signal includes a fault position and a fault type. The fault signal is sent to the control system of the vehicle.

[0104] It should be noted that all related contents of the steps involved in the above method embodiments can be cited to the function description of the corresponding function modules, which will not be repeated here.

[0105] The vehicle glass light transmittance adjusting device 300 provided by the embodiment of the present application is configured to execute the vehicle glass light transmittance adjusting method shown in Figure 2 The vehicle glass light transmittance adjusting method shown in the vehicle glass light transmittance adjusting device 300 can achieve the same effect as the vehicle glass light transmittance adjusting method.

[0106] The embodiment of the present application further provides a vehicle glass light transmittance adjusting device, which can execute the vehicle glass light transmittance adjusting method and related steps in the method embodiments.

[0107] The embodiment of the present application further provides a computer readable storage medium, which stores instructions, and the instructions are executed to execute the vehicle glass light transmittance adjusting method and related steps in the method embodiments.

[0108] The embodiment of the present application further provides a computer program product, which, when running on a computer, causes the computer to execute the vehicle glass light transmittance adjusting method and related steps in the method embodiments.

[0109] In some embodiments, the method shown in the present application can be implemented as computer program instructions encoded in a computer readable storage medium in a machine readable format or encoded in other non-transitory medium or article.

[0110] The embodiment of the present application further provides a vehicle glass light transmittance adjusting system 400, as shown in Figure 4 The vehicle glass light transmittance adjusting system 400 includes at least one processor 401 and at least one interface circuit 402.

[0111] As an example, when the vehicle glass light transmittance adjusting system 400 includes one processor and one interface circuit, the one processor can beFigure 4 The interface circuit 402 shown in the solid line box (or the interface circuit 402 shown in the dashed line box) can be Figure 4 The interface circuit 402 shown in the solid line box (or the interface circuit 402 shown in the dashed line box). When the vehicle glass light transmittance adjustment system 400 includes two processors and two interface circuits, the two processors include Figure 4 The processor 401 shown in the solid line box and the processor 401 shown in the dashed line box, and the two interface circuits include Figure 4 The interface circuit 402 shown in the solid line box and the interface circuit 402 shown in the dashed line box. No limitation is made in this regard.

[0112] The processor 401 and the interface circuit 402 can be interconnected by a line. For example, the interface circuit 402 can be used to receive a signal. For another example, the interface circuit 402 can be used to send a signal to other devices (for example, the processor 401). For example, the interface circuit 402 can read computer instructions stored in a memory and send the computer instructions to the processor 401. The processor 401 executes the instructions and, in combination with input and output devices, implements various steps in the above-described embodiments, for example, implements various steps performed in the method embodiment shown. Figure 2 Of course, the vehicle glass light transmittance adjustment system can also include other discrete devices, and the embodiments of the present application do not make specific limitations in this regard.

[0113] From the above description of the embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0114] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between devices or units, which can be electrical, mechanical or other forms.

[0115] The units described as separate components may or may not be physically separate, and the components displayed as units may be a physical unit or multiple physical units, that is, may be located in one place, or also can be distributed to multiple different places. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present application.

[0116] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0117] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of a software product in essence or in the form of a part that contributes or the whole or part of the technical solutions of the present application. The software product is stored in a storage medium and includes a plurality of instructions for causing a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0118] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for adjusting the light transmittance of vehicle glass, characterized in that, The method includes: Obtain vehicle status information, environmental information, and passenger status information of the passengers inside the vehicle; Based on the vehicle status information, the current driving scenario of the vehicle is determined; Based on the driving scenario, the environmental information, and the passenger status information, a transmittance adjustment strategy suitable for the passenger is determined; the transmittance adjustment strategy includes a global adjustment strategy and a local adjustment strategy. The first light transmittance of the vehicle glass is adjusted by the global adjustment strategy, and the second light transmittance of the passenger on the vehicle glass is adjusted by the local adjustment strategy.

2. The method according to claim 1, characterized in that, The step of determining a transmittance adjustment strategy suitable for the passenger based on the driving scenario, the environmental information, and the passenger status information includes: The global adjustment strategy is determined based on the driving scenario. Based on external environmental information, the projection area of ​​the target light source on the vehicle glass is identified; Based on the passenger status information, determine the degree of visual interference of the target light source to the passenger; Based on the visual interference level, a local adjustment strategy is determined for the projection area to adjust the light transmittance of the corresponding window glass in the projection area.

3. The method according to claim 2, characterized in that, Determining the visual interference level of the target light source on the passenger based on the passenger status information includes: The passenger's pupil data is extracted from the passenger status information; the pupil data includes one or more of the following: constriction speed, expansion speed, and fluctuation frequency; The visual interference level is determined based on the contraction speed, the expansion speed, and the fluctuation frequency.

4. The method according to claim 2, characterized in that, Multiple dimming units are deployed on the vehicle glass; determining the local adjustment strategy for the projection area based on the visual interference level to adjust the light transmittance of the corresponding window glass in the projection area includes: Determine at least one first dimming unit covering the projection area; Based on the visual interference level, determine the required center transmittance of the first center dimming unit corresponding to the center of the projection area; Based on the center transmittance, the transmittance of the first dimming unit other than the first center dimming unit in the first dimming unit is adjusted.

5. The method according to claim 4, characterized in that, The method further includes: The system tracks the passenger's line of sight in real time. The position of the projection area on the vehicle glass is dynamically updated based on the direction of the line of sight and the orientation of the target light source. Based on the position of the updated projection area on the vehicle glass, at least one second dimming unit covering the updated projection area is determined. Based on the visual interference level, the transmittance of each of the second dimming units is adjusted to update the local adjustment strategy.

6. The method according to claim 2, characterized in that, Determining the global adjustment strategy based on the driving scenario includes: When the driving scenario is a high-speed driving scenario, the global adjustment strategy is determined to be to reduce overall glare; And / or, the driving scenario is a tunnel passage scenario, and the global adjustment strategy is determined to be a fast response to light difference; And / or, if the driving scenario is a parking scenario, the global adjustment strategy is determined to be to reduce the overall light transmittance.

7. The method according to claim 1, characterized in that, The step of adjusting the first light transmittance of the vehicle glass through the global adjustment strategy and adjusting the second light transmittance of the vehicle glass corresponding to the passenger through the local adjustment strategy includes: According to the global adjustment strategy, the overall light transmittance of the vehicle glass is adjusted to the first light transmittance; According to the local adjustment strategy, the local light transmittance of the projection area on the vehicle glass is adjusted from the first light transmittance to the second light transmittance.

8. The method according to claim 1, characterized in that, The method further includes: When a malfunction is detected in the light transmittance adjustment function of the vehicle, a fault signal is generated; the fault signal includes the fault location and the fault type. The fault signal is sent to the vehicle's control system.

9. A vehicle glass light transmission adjustment device, characterized in that, The device includes: The acquisition module is used to acquire vehicle status information, environmental information, and passenger status information of the passengers inside the vehicle. The determination module is used to determine the current driving scenario of the vehicle based on the vehicle status information; and to determine a transmittance adjustment strategy suitable for the passenger based on the driving scenario, the environmental information, and the passenger status information; the transmittance adjustment strategy includes a global adjustment strategy and a local adjustment strategy. An adjustment module is used to adjust the first light transmittance of the vehicle glass through the global adjustment strategy, and to adjust the second light transmittance of the passenger on the vehicle glass through the local adjustment strategy.

10. A vehicle glass light transmission adjustment device, characterized in that, The vehicle glass light transmission adjustment device includes a processor and a memory, the memory storing machine-executable instructions that can be executed by the processor, and the processor executing the machine-executable instructions to implement the vehicle glass light transmission adjustment method according to any one of claims 1 to 8.

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